Tin supply device for tin soldering of electronic element

Abstract

The utility model provides a tin supply device for electronic component tin soldering, which comprises a tin supplementing mechanism and a heating groove body, the heating groove body is provided with a heating groove, the heating groove body comprises a first side plate and a second side plate, the first side plate and the second side plate are both provided with pipe holes, electric heating pipes are arranged in the pipe holes, and the electric heating pipes are connected with the first side plate and the second side plate. A tin supplementing groove communicated with the heating groove is formed in the first side plate, the tin supplementing mechanism comprises two guide components which are oppositely arranged, a driving wheel set and an abutting wheel set are arranged between the two guide components, each guide component comprises a first guide section, a first guide groove is formed in the end face of each first guide section, and a second guide groove is formed in the end face of each first guide section. The first guide grooves in the two guide components are matched to form a first guide through hole, the first guide grooves are further provided with containing grooves in an expanded mode, and wire cutting assemblies are arranged in the containing grooves. According to the utility model, the entering position of the tin wire is separated from the heating groove through the tin supplementing groove, so that the mutual interference between the tin supplementing work and the slag scraping work is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electronic component soldering equipment field, especially relate to a tin supply device for electronic component soldering. BACKGROUND

[0002] The patch inductor is a kind of common electronic component, it needs to be immersed in tin in the production process, and the tin immersion work is usually carried out in heating tank, the function of heating tank is to contain tin liquid, and tin liquid is heated to keep the liquid state of tin metal.In the tin immersion work, a batch of multiple patch inductors is immersed in tin at the same time, and the tin immersion time is short, and the tin immersion frequency is high, therefore, the tin liquid in the heating tank will be reduced continuously along with the tin immersion work, and the tin liquid needs to be replenished quantitatively at appropriate frequency.The existing tin supplementing mode is to send tin wire into heating tank by tin supplementing device, and tin wire is melted by using the heat generated by heating tank and the heat of tin liquid in tank, to realize the purpose of replenishing tin liquid.

[0003] A pipe extending into the heating tank is usually arranged on the existing tin supplementing device to guide tin wire into the heating tank, this mode ensures the normal entry of tin wire, but also causes some problems: after each batch of patch inductors is immersed in tin, a layer of dregs is left on the surface of tin liquid, therefore, the heating tank needs to work with the dregs scraping mechanism, and the dregs scraping mechanism is used to scrape the surface of tin liquid after each tin immersion, due to the entry of pipe and tin wire, the dregs scraping mechanism cannot completely cover the surface of tin liquid, and a certain liquid surface area needs to be left for tin wire to enter, to avoid the mutual interference of tin supplementing work and dregs scraping work, in the area, the dregs generated in tin melting and tin immersion work will be accumulated, on the one hand, the accumulated dregs increase the burden of cleaning work, on the other hand, the liquid surface of tin liquid is disturbed in the process of tin immersion and dregs scraping, and the dregs will also float into the tin dipping area of liquid surface, to affect the tin dipping work. UTILITY MODEL CONTENTS

[0004] In order to overcome the deficiencies and problems of prior art, avoid the influence of tin supplementing work in heating tank on dregs scraping work, and reduce the accumulation of dregs on the surface of tin liquid, the utility model provides a tin supply device for electronic component soldering.

[0005] The utility model is realized by the following technical solutions:

[0006] A kind of tin supply device for electronic component soldering, including tin filling mechanism and heating tank body, heating tank is equipped on the heating tank body, the heating tank body includes first side plate and second side plate, pipe hole is opened in the first side plate and second side plate, electric heating tube is equipped in pipe hole, first side plate is equipped with with the tin filling groove of the communication of heating tank, the tin filling mechanism includes two oppositely arranged guide members, driving wheel group and pressure wheel group are equipped between the two guide members, the guide member includes first guide section, the end surface of first guide section is equipped with first guide groove, first guide groove is formed first guide through hole by cooperation on the first guide groove of two guide members, first guide groove is also extended with accommodating groove, tangential component is equipped in accommodating groove.

[0007] The heating tank body further includes a bottom plate and two end plates, the two ends of the first side plate and the second side plate are connected by one end plate respectively, and the first side plate, the second side plate and the end plate are all arranged on the bottom plate.

[0008] One of the end plates is provided with a wire hole for threading the electric heating tube.

[0009] The tangential component includes a cutting block hinged in the accommodating groove, and a spring is arranged between the cutting block and the accommodating groove.

[0010] The guide member further includes a second guide section and a connecting section, the end surface of the second guide section is provided with a second guide groove, and the second guide grooves on the two guide members cooperate to form a second guide through hole, the connecting section is arranged between the first guide section and the second guide section, and the driving wheel group and the pressure wheel group are arranged on the connecting section.

[0011] One side of the connecting section is provided with a baffle, the pressure wheel group includes a wheel frame, a pressure wheel is installed on the wheel frame, an end of the wheel frame is provided with a supporting rod penetrating through the baffle, a spring is arranged between the wheel frame and the baffle, and the spring is sleeved on the supporting rod.

[0012] The driving wheel group includes a driving wheel, and the driving wheel is connected with a driving motor.

[0013] The wheel surface of the driving wheel and the pressure wheel is provided with a circumferential convex.

[0014] A conduit is threadedly connected to the outlet of the first guide through hole.

[0015] A bracket is further included, and a rotating rod for installing a tin wire roll is arranged on the bracket.

[0016] The tin filling groove is used for tin filling, the entering position of the tin wire is separated from the heating tank, the mutual interference of tin filling work and tin liquid surface slag scraping work is avoided, meanwhile, the floating impurities generated when the tin wire is brought in and melted also cannot enter the heating tank, and the appearance of floating slag in the heating tank can be reduced.

[0017] The utility model discloses, the tin slot is located at the first side plate, the first side plate still is provided with the pipe hole, is equipped with the electric heating tube in the pipe hole, and the tin wire enters the tin liquid from the tin slot, and it is closer to the heat source, so that can melt fast, has improved the tin efficiency.

[0018] The utility model discloses drive wheel and the wheel face of pressure wheel all are equipped with the circle convex, and drive wheel and pressure wheel can drive tin wire to enter first guide through -hole, and the convex can improve the friction of tin wire, and the concave mark is pressed on the outer wall of tin wire at the same time. Meanwhile, the first guide section of the utility model is equipped with the accommodation, is equipped with tangent component in the accommodation groove, and the tangent component includes the cutting block hinged in the accommodation groove, and the end of cutting block is blade part, and is equipped with the elastic sheet between cutting block and the accommodation groove, and the elasticity of elastic sheet will make the blade part of cutting block always slide on the outer wall of tin wire, and cutting block is inclined to the export end of first guide through -hole, this makes tin wire can move along the inclined direction of cutting block, that is, towards the export of first guide through -hole. When needing cutting tin wire, only need to drive tin wire to retreat through drive wheel, and the blade part of cutting block will be on the concave mark of tin wire outer wall, and tin wire is cut off in the process of tin wire retreat. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model,

[0020] Figure 2 It is the heating groove body structure schematic diagram of the utility model,

[0021] Figure 3 It is the tin supplement mechanism structure schematic diagram of the utility model,

[0022] Figure 4 It is the guide member structure schematic diagram of the utility model,

[0023] Figure 5 It is the drive wheel and pressure wheel structure schematic diagram of the utility model,

[0024] Figure 6 It is the tangent component structure schematic diagram of the utility model.

[0025] In the figure: 1-tin wire, 100-heating tank body, 101-heating tank, 102-tube hole, 103-electric heating tube, 110-first side plate, 111-tin supplementing groove, 120-second side plate, 130-end plate, 131-threading hole, 140-bottom plate, 200-tin supplementing mechanism, 210-guiding component, 211-first guiding section, 212-first guiding groove, 213-first guiding through hole, 214- accommodating groove, 215-cutting assembly, 2151-cutting block, 2152-spring piece, 216-conduit, 217-second guiding section, 218-second guiding groove, 219-second guiding through hole, 220-connecting section, 2201-stop board, 221-driving wheel set, 2211-driving wheel, 2212-driving motor, 2213-protrusion, 222-pressing wheel set, 2221-wheel frame, 2222-pressing wheel, 2223-branch, 2224-spring, 223-support, 2231-rotating rod. DETAILED DESCRIPTION

[0026] For the convenience of those skilled in the art, the present application is described in further detail below in combination with the drawings and specific embodiments.

[0027] As shown in Figure 1 , 2 , a tin supplying device for soldering electronic components comprises a tin supplementing mechanism 200, a heating tank body 100 and a support 223, the support 223 is provided with a rotating rod 2231 for mounting a tin wire roll, and the tin supplementing mechanism 200 is mounted on the support 223. The heating tank body 100 is provided with a heating tank 101 for containing tin liquid and keeping the tin metal in a liquid state. The heating tank body 100 comprises a first side plate 110 and a second side plate 120, the first side plate 110 and the second side plate 120 are both provided with a tube hole 102, and the tube hole 102 is provided with an electric heating tube 103, the heat generated by the electric heating tube 103 is used to maintain the liquid state of the tin metal in the heating tank 101. The heating tank body 100 further comprises a bottom plate 140 and two end plates 130, the two ends of the first side plate 110 and the second side plate 120 are respectively connected by an end plate 130, the first side plate 110, the second side plate 120 and the two end plates 130 are all arranged on the bottom plate 140 and cooperatively form the heating tank body 100, and one of the end plates 130 is provided with a threading hole 131 for the electric heating tube 103 to pass through, which facilitates the installation and wiring of the electric heating tube 103.

[0028] As shown in Figure 2As shown, the first side plate 110 is provided with a tin filling groove 111 communicated with the heating groove 101. In the tin filling work, the tin wire 1 is added to the tin filling groove 111 by the tin filling mechanism 200, and the tin wire 1 is melted into tin liquid in the tin filling groove 111 to realize tin filling. It should be noted that the bottom end of the tin filling groove 111 is communicated with the heating groove 101, and the liquid level of the tin liquid is higher than the communication position. Therefore, the heating groove 101 and the tin filling groove 111 both have tin liquid, and the liquid levels are consistent. The tin wire 1 melted in the tin filling groove 111 can enter the heating groove 101 through the communication position to realize tin filling. Because the electric heating tube 103 is also installed on the first side plate 110, the tin filling groove 111 is located close to the electric heating tube 103. By tin filling through the tin filling groove 111, the tin wire 1 is closer to the heat source, and the melting speed of the tin wire 1 is faster, so that the tin filling can be quickly realized. In this embodiment, the tin filling is realized through the tin filling groove 111, so that the entering position of the tin wire 1 is separated from the heating groove 101, thereby avoiding the mutual interference between the tin filling work and the slag scraping work on the surface of the tin liquid. At the same time, the floating impurities generated when the tin wire 1 is brought in and melted are blocked between the tin filling groove 111 and the heating groove 101, so that the floating impurities cannot enter the heating groove 101, thereby reducing the generation of floating slag in the heating groove 101 during the tin filling process.

[0029] As shown in Figure 3 , 4 , the tin filling mechanism 200 includes two oppositely arranged guide members 210. The two guide members 210 are provided with a driving wheel set 221 and a pressing wheel set 222. The driving wheel set 221 is used to drive the tin wire 1 to advance, and the pressing wheel set 222 is used to press the tin wire 1 on the driving wheel set 221, so as to avoid the insufficient friction between the driving wheel set 221 and the tin wire 1, which causes the tin wire 1 to fail to advance. The guide member 210 includes a first guide section 211. The end face of the first guide section 211 is provided with a first guide groove 212. The first guide grooves 212 on the two guide members 210 cooperatively form a first guide through hole 213. The driving wheel set 221 drives the tin wire 1 to pass through the first guide through hole 213 and enter the tin filling groove 111. The guide member 210 further includes a second guide section 217 and a connecting section 220. The end face of the second guide section 217 is provided with a second guide groove 218. The second guide grooves 218 on the two guide members 210 cooperatively form a second guide through hole 219. The connecting section 220 is arranged between the first guide section 211 and the second guide section 217. The driving wheel set 221 and the pressing wheel set 222 are arranged on the connecting section 220. The second guide through hole 219 is used to guide the tin wire 1 to smoothly enter between the driving wheel set 221 and the pressing wheel set 222.

[0030] As shown in Figure 4 , 5As shown, one side of the connecting section 220 is provided with a baffle 2201, the pressing wheel group 222 includes a wheel frame 2221, the wheel frame 2221 is provided with a pressing wheel 2222, the end of the wheel frame 2221 is provided with a supporting rod 2223 penetrating through the baffle 2201, the supporting rod 2223 and the baffle 2201 cooperate to prevent the pressing wheel group 222 from loosening and deviating during operation. The wheel frame 2221 and the baffle 2201 are provided with a spring 2224, the spring 2224 provides pressure for the pressing wheel 2222 to press the tin wire 1, the spring 2224 is sleeved on the supporting rod 2223, and the supporting rod 2223 can also ensure that the spring 2224 will not loosen. The driving wheel group 221 includes a driving wheel 2211, the driving wheel 2211 is connected with a driving motor 2212, during operation, the driving motor 2212 drives the driving wheel 2211 to rotate, the pressing wheel 2222 presses the tin wire 1 on the surface of the driving wheel 2211, and the driving wheel 2211 drives the tin wire 1 to move forward in the rotating process, so as to complete the tin supplementing work. The surfaces of the driving wheel 2211 and the pressing wheel 2222 are provided with circumferential protrusions 2213, the protrusions 2213 can increase the friction between the driving wheel 2211, the pressing wheel 2222 and the surface of the tin wire 1, and can also press indentations on the surface of the tin wire 1. The outlet of the first guiding through hole 213 is threadedly connected with a guide pipe 216, the guide pipe 216 is used for guiding the tin wire 1 to the tin supplementing groove 111.

[0031] As shown in the figure, Figure 6 As shown, the first guiding groove 212 is also expanded with a containing groove 214, the containing groove 214 is provided with a cutting assembly 215, the cutting assembly 215 can cut the tin wire 1 passing through the first guiding through hole 213. Since the size of the patch inductor is small, the liquid level precision of the tin liquid surface is high during the tin immersion work, the cutting assembly 215 can cut the tin wire 1 with a proper size according to actual needs for supplementing, so as to realize accurate tin supplementing. The cutting assembly 215 includes a cutting block 2151 hinged in the containing groove 214, the cutting block 2151 is obliquely arranged towards the outlet end of the first guiding through hole 213, the cutting block 2151 and the containing groove 214 are provided with a spring 2152, the end of the cutting block 2151 is a blade part, when the tin wire 1 moves towards the outlet of the first guiding through hole 213, the spring 2152 drives the blade part of the cutting block 2151 to slide along the outer wall of the tin wire 1. Based on the effect of the protrusions 2213, specifically, the indentations pressed on the surface of the tin wire 1 by the protrusions 2213, when the tin wire 1 retreats, the blade part of the cutting block 2151 will be pressed on the indentations, so as to prevent the tin wire 1 from retreating, if the force for retreating the tin wire 1 continues to be applied, the cutting block 2151 will be driven to rotate, in the rotating process, the blade part extrudes the tin wire 1 to generate shearing force, so as to cut the tin wire 1. It should be noted that the retreat movement of the tin wire 1 refers to the movement of the tin wire 1 from the inside of the first guiding through hole 213 to the inlet of the first guiding through hole 213.

[0032] Working principle: firstly, tin wire roll is placed on the rotating rod 2231, and tin wire 1 is inserted into the second guide through hole 219, so that tin wire 1 enters between the driving wheel 2211 and the pressing wheel 2222, then the driving motor 2212 is started to make the driving wheel 2211 rotate, the driving wheel 2211 drives the tin wire 1 to enter the first guide through hole 213, and the tin wire 1 enters the tin supplement groove 111 through the pipe 216 connected with the outlet end of the first guide through hole 213 to carry out tin supplement. When the amount of tin wire 1 entering the tin supplement groove 111 is enough, the driving motor 2212 drives the driving wheel 2211 to reverse, the tin wire 1 retreats, and the tangent assembly 215 cuts off the tin wire 1. After the tin wire 1 is cut off, the driving wheel 2211 drives the tin wire 1 of the tin roll to advance, pushes out the cut tin wire 1 from the pipe 216, and completes the tin supplement work.

[0033] The above embodiment is a preferred implementation manner of the utility model, and is not a limitation on the utility model. Without departing from the utility model concept, any obvious replacement is within the protection scope of the utility model.

Claims

1. A tin supply device for soldering electronic components, comprising a tin replenishing mechanism (200) and a heating tank body (100), wherein a heating tank (101) is arranged on the heating tank body (100), and characterized in that: The heating groove body (100) comprises a first side plate (110) and a second side plate (120), the first side plate (110) and the second side plate (120) are provided with pipe holes (102), the pipe holes (102) are provided with electric heating pipes (103), the first side plate (110) is provided with a tin supplementing groove (111) communicated with the heating groove (101), the tin supplementing mechanism (200) comprises two oppositely arranged guide members (210), a driving wheel set (221) and a pressing wheel set (222) are arranged between the two guide members (210), the guide member (210) comprises a first guide section (211), the end face of the first guide section (211) is provided with a first guide groove (212), the first guide grooves (212) on the two guide members (210) cooperatively form a first guide through hole (213), the first guide groove (212) is further extended with a containing groove (214), the containing groove (214) is provided with a tangent cutting assembly (215).

2. The solder feeding device for electronic components according to claim 1, wherein: The heating groove body (100) further comprises a bottom plate (140) and two end plates (130), the two ends of the first side plate (110) and the second side plate (120) are connected by one end plate (130) respectively, the first side plate (110), the second side plate (120) and the end plate (130) are arranged on the bottom plate (140).

3. The solder feeding device for electronic components according to claim 2, wherein: One of the end plates (130) is provided with a wire passing hole (131) for the electric heating pipe (103) to pass through.

4. The solder feeding device for electronic components according to claim 1, wherein: The tangent cutting assembly (215) comprises a cutting block (2151) hinged in the containing groove (214), the cutting block (2151) and the containing groove (214) are provided with elastic sheets (2152), the cutting block (2151) is arranged obliquely to the outlet end of the first guide through hole (213), and the end portion of the cutting block (2151) is a blade portion.

5. The apparatus according to claim 4, wherein: the soldering tip is made of a material having a melting point lower than that of the solder. The guide member (210) further comprises a second guide section (217) and a connecting section (220), the end face of the second guide section (217) is provided with a second guide groove (218), the second guide grooves (218) on the two guide members (210) cooperatively form a second guide through hole (219), the connecting section (220) is arranged between the first guide section (211) and the second guide section (217), and the driving wheel set (221) and the pressing wheel set (222) are arranged on the connecting section (220).

6. The solder feeding device for electronic components according to claim 5, wherein: One side of the connecting section (220) is provided with a baffle (2201), the pressing wheel set (222) comprises a wheel frame (2221), the wheel frame (2221) is provided with a pressing wheel (2222), the end portion of the wheel frame (2221) is provided with a supporting rod (2223) penetrating through the baffle (2201), a spring (2224) is arranged between the wheel frame (2221) and the baffle (2201), and the spring (2224) is sleeved on the supporting rod (2223).

7. The apparatus according to claim 6, wherein: The driving wheel set (221) comprises a driving wheel (2211), and the driving wheel (2211) is connected with a driving motor (2212).

8. The apparatus according to claim 7, wherein the soldering tip is made of a material having a melting point higher than that of the solder. The wheel surface of the driving wheel (2211) and the pressing wheel (2222) is provided with a peripheral convex (2213).

9. The apparatus according to claim 1, wherein: the soldering tip is made of a material having a melting point of 200°C or higher. A conduit (216) is threadedly connected at the outlet of the first guide through hole (213).

10. The solder supply apparatus for electronic components according to any one of claims 1 to 9, characterized by: A support (223) is further included, and the support (223) is provided with a rotating rod (2231) for mounting a tin wire roll.

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